I have the same problem with my bags becoming non interactive.
It seems to happen randomly, but it doesn't happen very often so I don't know of any reliable way to find what causes it.
I have to /reloadui to make the bags interactive again.

There seems to be something missing from the two most recent downloads. If I import them there's no mining data for any Northrend zone and it doesn't record anything I mine. I checked the DB_WowheadMain.lua file and Cobalt/Saronite/Titanium aren't listed in there for these two versions. I went back to the 3rd most recent version of t...